Length illusion in fractional Müller-Lyer stimuli: an object-perception approach.

@article{Redding1993LengthII,
  title={Length illusion in fractional M{\"u}ller-Lyer stimuli: an object-perception approach.},
  author={Gordon M. Redding and E H Hawley},
  journal={Perception},
  year={1993},
  volume={22 7},
  pages={819-28}
}
Length judgments were compared for Müller-Lyer stimuli and figures which had line junctions at only one end of the central shaft. A length illusion occurred for fractional figures, only slightly reduced in magnitude from the usual illusion, and the largest reduction occurred for fractional figures with fork junctions. These results are consistent with an hypothesis (drawn from artificial intelligence algorithms for interpreting line drawings) that isolated line junctions are treated as boundary… CONTINUE READING

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